Title
Two-Stage Plans for Estimating the Inverse of a Monotone Function
Abstract
This study investigates two-stage plans based on nonparametric procedures for estimating an inverse regression function at a given point. Specifically, isotonic regression is used at stage one to obtain an initial estimate followed by another round of isotonic regression in the vicinity of this estimate at stage two. It is shown that such two-stage plans accelerate the convergence rate of one-stage procedures and are superior to existing two-stage procedures that use local parametric approximations at stage two when the available budget is moderate and/or the regression function is "ill-behaved." Both Wald- and likelihood ratio-type confidence intervals for the threshold value of interest are investigated and the latter are recommended in applications due to their simplicity and robustness. The developed plans are illustrated through a comprehensive simulation study and an application to car fuel efficiency data.
Year
DOI
Venue
2015
10.1080/00401706.2014.940773
TECHNOMETRICS
Keywords
Field
DocType
Experimental design,Isotonic regression,Two-stage plan
Econometrics,Inverse,Monotonic function,Mathematical optimization,Isotonic regression,Robustness (computer science),Nonparametric statistics,Parametric statistics,Rate of convergence,Statistics,Confidence interval,Mathematics
Journal
Volume
Issue
ISSN
57.0
3.0
0040-1706
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
runlong tang100.34
moulinath banerjee211.06
George Michailidis330335.19
Shawn Mankad4274.42